Moses
Genesis 12:1BSB·traditional attribution

Then the LORD said to Abram, “Leave your country, your kindred, and your father’s household, and go to the land I will show you.

John Calvin Reformed @genevareformer

1. Now the Lord had said unto Abram . That an absurd division of these chapters may not trouble the readers, let them connect this sentence with the last two verses of the previous chapter. Moses had before said, that Terah and Abram had departed from their country to dwell in the land of Canaan.

Matthew Henry Presbyterian @wholebiblehenry

We have here the call by which Abram was removed out of the land of his nativity into the land of promise, which was designed both to try his faith and obedience and also to separate him and set him apart for God, and for special services and favours which were further designed.

Commenting on Genesis 12:1-3

John Gill Reformed Baptist @doctorgill

Now the Lord had said unto Abram,.... In Ur of the Chaldees, before he came and dwelt in Charran, as seems from Act 7:2 and so Aben Ezra interprets it; but Jarchi and others think, that what follows was said to him in Haran, and so the words may be more literally rendered (u), "and the Lord said unto Abram"; after the death of Terah...